An Otto cycle with the air-standard assumptions (cv=0.717 kJ/kg.K and cp/cv=1.4) has a compression ratio of 10. Before the isentropic compression process, the air is at 140 kPa, 15°C, and 590 cm3. The heat transfer to the air per cycle is 1200 kJ/kg. The angular speed of the crankshaft for the four-stroke engine is 2400 revolutions per minute. Determine (a) the thermal (first law) efficiency, (b) the second law efficiency, (c) the net specific power output of the cycle (in kJ/kg) (d) the mean effective pressure (MEP), (e) the horse power (hp) of the engine Note: You must draw P-V and T-s charts and mark processes to have a score

Q: An Otto cycle with the air-standard assumptions (cv=0.717 kJ/kg.K and cp/cv=1.4) has a compression…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: volume is 0.8m^3. The net work of the engine is 143 kJ/kg. Calculate the mean effective pressure in…

A: Given data  Maximum volume = 0.8 m3 Compression ratio = 8.24 m3 Wnet= 143 k/kg

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Q: kJ/kg then the specific net work output of the cycle is

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Q: An Otto cycle engine operates with the cycle shown below. The air in the engine can be considered a…

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Q: An Otto cycle engine operates with the cycle shown below. The air in the engine can be considered a…

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Q: An Otto cycle engine operates with the cycle shown below. The air in the engine can be considered a…

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Q: An Otto cycle engine operates with the cycle shown below. The air in the engine can be considered a…

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Q: e compression ratio of a Dual cycle is 16. The temperature and pressure at the beginning of the…

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Q: An Otto cycle engine operates with the cycle shown below. The air in the engine can be considered a…

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Q: An Otto cycle engine operates with the cycle shown below. The air in the engine can be considered a…

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Q: The cylinder of an Ideal Dual Combustion Cycle,, with a pressure ratio of 2, has a bore of 7 inches…

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IC engines

The term "engine" indicates a mechanical device/machine used to convert input energy to a specific mechanical output. The input energy may be in the form of chemical energy, thermal energy, or so on and mechanical output is in the form of mechanical energy (work done). Generally, the engines classify into two groups which are internal combustion type and external combustion type, and further, these two types can be classified into two types that are reciprocating and rotary engines.